Abstract:The reasons of the configuration characteristics on the No.7 blast furnace of Hansteel necessary Bischoff waterish washer, running status and yawp superscale, circulate fall off, rubber compensator attaint easy, hydraulic pressure servo valve build up and throatselfmotion close and build up gas and liquid channels are anatomised, and relevant technology alterations are constituted。 After actualized those, it procured demands of content the blast furnace and TRT normal running and CCPP’s need and yawp content national standard,and the effect is very good.